MongoDB Operators Quiz (original) (raw)

Which MongoDB operator is used to compare two values and return -1, 0, or 1?

What does the $gte operator do in MongoDB?

• Compares if one value is greater than another
• Checks if a field is greater than or equal to a given value
• Compares if one value is strictly equal to another
• Sorts documents in ascending order

Which logical operator in MongoDB returns true if all conditions are met?

What does the $multiply operator do in MongoDB?

• Finds the product of an array of numbers
• Multiplies a field value by a specified number
• Performs an aggregation on numeric fields

Which MongoDB operator adds elements to an array?

How does the $pop operator work in MongoDB?

• Removes the last element of an array
• Removes the first element of an array
• Removes an element at a specified index
• Can remove the first or last element of an array

What is the function of the $rename operator in MongoDB?

• Renames a field in a document
• Changes the type of a field
• Removes a field from a document

Which array query operator is used to return the length of an array?

What does the $strcasecmp operator do in MongoDB?

• Converts a string to uppercase
• Compares two strings case-insensitively
• Splits a string into an array

How do you find an element at a specific index in a MongoDB array?

There are 10 questions to complete.

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